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Shaft sinking by rotary drilling

Shuttle-car conversion from storage battery to diesel-electric power, Acme Mine, Certain-teed Products Corp., Acme, Hardeman County, Tex.

Roof-bolting the Delaware Aqueduct

Investigation of gas explosions in Brighton, N.Y., September 21, 1951

Published Year

• 1940-1949 (1)
• 1950-1959 (3)

Subject

• Aqueducts (1)
• Mine explosions--New York (State)--Brighton (1)
• Rock bolts (1)
• Rotary drilling (1)
• Shaft sinking (1)
• Shuttle cars (Mine haulage)--Equipment and supplies (1)

Author

• Platt, D. H. (4) *
• Berger, L. B. (1) *
• Jones, G. W. (1)

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